Cleveland Controls DFS-301-112 Switch Most failures result from a

Most failures result from a loss of the thermostatic charge due to capillary tube vibration rub-through or diaphragm fatigue

Its automatic reset functionality eliminates the need for manual intervention after the system cools

Repeated tripping typically indicates a cracked heat exchanger

The assembly utilizes a round tip style and a universal mounting bracket to ensure reliable flame sensor positioning and consistent pilot ignition across Natural Gas and LP applications

Professionals should utilize 18 or 20-gauge

Cleveland Controls DFS-301-112 Switch Most failures result from aThe Cleveland Controls DFS 301 112 is a precision engineered fixed set point airflow switch designed for critical monitoring in duct heaters, ovens, and high performance HVAC systems. As an airflow proving switch, it utilizes a sensitive silicone diaphragm and a snap acting SPDT switch to ensure air pressure rises meet specific operational thresholds before permitting equipment engagement. This model is factory calibrated to operate at a fixed 0. 03"